What is the different between a auto shift and automatic freightliner truck transmission?

An auto shift transmission, also known as an automated manual transmission (AMT), is a type of transmission that combines features of both manual and automatic transmissions. It uses an electronic control unit (ECU) to select and engage gears, but still requires the driver to use a clutch pedal when shifting gears. Auto shift transmissions are often used in commercial vehicles, such as freightliner trucks, because they offer improved fuel efficiency and reduced wear and tear on the driveline compared to traditional manual transmissions.

An automatic transmission, on the other hand, does not require the driver to use a clutch pedal at all. It uses a torque converter to transmit power from the engine to the transmission, and the gears are shifted automatically based on the vehicle's speed and engine RPM. Automatic transmissions are used in a wide variety of vehicles, including passenger cars, light trucks, and heavy-duty trucks.

Here is a table summarizing the key differences between auto shift and automatic transmissions:

| Feature | Auto Shift Transmission | Automatic Transmission |

|---|---|---|

| Clutch pedal | Yes | No |

| Gear shifting | Driver-controlled using clutch pedal | Automatic based on vehicle speed and engine RPM |

| Fuel efficiency | Improved compared to manual transmission | Generally less fuel efficient than manual transmission |

| Wear and tear | Reduced compared to manual transmission | Generally more wear and tear than manual transmission |

| Common applications | Commercial vehicles, such as freightliner trucks | Passenger cars, light trucks, heavy-duty trucks |